NUF4403MNT1G

Overview

The onsemi NUF4403MNT1G is a four-channel EMI filter array integrating ESD protection, designed for wireless applications. It utilizes an RC Pi-type topology with typical component values of R = 100 Ω and C = 17 pF, achieving a 105 MHz cutoff frequency. The device provides greater than -35 dB attenuation in the 800 MHz to 2.2 GHz band. It supports data rates up to 70 Mbps and offers ±18 kV contact and ±30 kV air ESD protection per IEC61000-4-2 Level 4. Operating temperature ranges from -40°C to +85°C.

Feature Summary

• Integrates four-channel EMI filtering with ESD suppression in a compact DFN package
• Provides high attenuation (> -35 dB) across 800 MHz to 2.2 GHz frequencies
• Delivers robust ESD protection meeting IEC61000-4-2 Level 4 standards

Applications

• EMI filtering for LCD and camera data lines
• Protection for I/O ports and keyboards
• Suppression of interference for 2G/3G, GPS, Bluetooth, and WLAN signals

Procurement Notes

Verify the specific ordering suffix (e.g., T1G) against the manufacturer's official datasheet to ensure correct packaging and tape/reel specifications. Confirm that the DFN-8 package variant matches the design footprint requirements. Cross-reference the RoHS compliance status and lead-free status with current environmental declarations before finalizing procurement orders.

Selection Notes

Select this component when designing parallel interfaces requiring simultaneous EMI suppression and electrostatic discharge protection. The integrated RC Pi-filter structure reduces bill-of-materials count compared to discrete solutions. Ensure the 105 MHz cutoff frequency aligns with the signal bandwidth needs while providing sufficient isolation for RF interference in the specified microwave bands.

Part Context

This part belongs to the NUF series of EMI filters and ESD suppressors manufactured by onsemi. It is specifically engineered to address electromagnetic interference in high-speed digital interfaces while protecting sensitive circuits from static discharge events. The integration of filtering and protection functions allows for optimized PCB layout and enhanced system reliability in portable electronic devices.

Replacement Considerations

NUF4403MN is the base part number; verify if the T1G suffix denotes specific reel packaging or material variations. No direct functional substitutes are listed in public documentation. Evaluate alternative onsemi models like NUF6402MNT1G only if channel count or voltage ratings differ significantly from project requirements.